Krug Grande Cuvee is a multivintage blend of up to 50 different wines from 6 to 10 different vintages. It's aged in small oak barrels for 6 years prior to release. All this means is that it is a non-vintage wine, not dated. In short, Krug decided what stored vintages to blend together in a minimum of 6 years prior to your wedding. A dark, cool closet is not good storage for such a Champagne so I would find a good excuse to pop it with a back up of something on the sideline. The current releases sell between $100 and $130.